Phylum Nematodes: Station 4
• This group includes parasite type round worms. They are
very tiny and round. A single rotten apple lying on the
ground could contain as many as 100,000 roundworms.
They help break down dead animals and plants to build soil.
They have a get and a very simple brain. They are parasites
(meaning live on and in other things) and can infect humans.
Some of the more popular forms are pin worms and hook
worms.
• These are cylinder (round) shaped worms
Nematoda Samples and Classification
Structures
• Kingdom: Animalia
– Phylum: Nematoda
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1.
2.
3.
4.
Common Name = Round Worm.
Reproduction = Mostly Sexual (two parents)
Symmetry = Bilaterally Symmetrical
Classification Structures
Nematodes have round bodies.
They have no circulatory system
Have a simple nervous system
Have two layers of cells tissues and organs.
• Samples:
» 4A = Genus Ascaris
» 4B = Genus Lumbricus Species terrestris